China china china kno3 potassium nitrate price manufacturers

When sourcing Potassium Nitrate, you must prioritize purity levels, typically categorized as Industrial Grade (99.7%) or Agricultural Grade (13.5-0-45 NPK). For industrial applications like glass or explosives, ensure low chloride content (<0.01%) and moisture levels below 0.1%. For agricultural use, verify the solubility rate to ensure it is suitable for fertigation systems without clogging nozzles.

As a chemical product, it must comply with the Globally Harmonized System (GHS) for labeling and packaging. Ensure the supplier provides a valid Material Safety Data Sheet (MSDS) and a Certificate of Analysis (COA) for every batch. For European markets, REACH registration is essential, while shipments to the US may require compliance with DOT (Department of Transportation) regulations for hazardous materials.

Request a third-party inspection report from reputable agencies like SGS or Intertek before the balance payment. Focus on testing the K2O content (typically ≥46%) and the absence of heavy metal contaminants. Additionally, check if the manufacturer holds ISO 9001:2015 certification to ensure consistent production processes.

Potassium Nitrate is widely used in agriculture as a high-efficiency water-soluble fertilizer, in the glass industry as a clarifying agent, and in food preservation (E252). It also serves as a critical component in solar power heat storage salts and pyrotechnics. Ensure the physical form—crystalline powder or granular—matches your specific application requirements.

Potassium Nitrate is classified as a Class 5.1 Oxidizer (UN 1486). This means it is a dangerous good (DG) that requires specialized UN-certified packaging and stowage away from flammable materials. You must work with a freight forwarder experienced in DG cargo to avoid port rejections or heavy fines.

Prices for KNO3 are highly sensitive to raw material costs (Liquid Ammonia and Potassium Chloride). It is advisable to negotiate FOB (Free On Board) terms to maintain control over shipping costs. For payment, use Letter of Credit (L/C) or Trade Assurance through reputable platforms like Made-in-China.com to secure your funds until the shipping documents are verified.

China occasionally adjusts export tariffs and inspection requirements (CIQ) for fertilizers to ensure domestic supply. Always confirm with your supplier if the product requires a Pre-shipment Inspection Certificate and factor in an additional 7-14 days for customs clearance procedures in China.

Conduct a factory audit or use the 'Audit Verified' supplier status on Made-in-China.com to confirm the supplier's legal existence and production capacity. Avoid making full advance payments to unknown entities; instead, utilize a 30% deposit and 70% against the Bill of Lading (B/L) structure.